Hot pressing device

Abstract

The hot pressing device is used for pressing a shell and an outer part, the shell is provided with a first opening and a second opening, the outer part comprises a substrate layer, a main body and a secondary body, the main body and the secondary body are arranged on the substrate layer, the main body is exposed out of the first opening, and the secondary body is exposed out of the second opening. Comprising a first hot-pressing assembly and a second hot-pressing assembly moving relative to the first hot-pressing assembly. The first hot pressing assembly comprises a first base and a first abutting part, the height of the first abutting part protruding out of the first base is H1, the first base is used for abutting against the heating substrate layer from one side, and the first abutting part is used for abutting against the secondary body of the heating outer part from one side of the substrate layer; the second hot pressing assembly comprises a second base, a second abutting portion and a third abutting portion, the second abutting portion and the third abutting portion both protrude out of the second base, the height of the portion, protruding out of the second base, of the second abutting portion is H2, the height of the portion, protruding out of the second base, of the third abutting portion is H3, and H1, H2 and H3 meet the following relation that H2 is larger than H3, and H1 = H2-H3.

Description

Technical Field

[0001] This application relates to the field of hot pressing, and more particularly to a hot pressing apparatus. Background Technology

[0002] As consumer electronics products increasingly demand higher quality appearance and better branding, many products embed decorative elements, such as logos, made of various materials like glass and metal, into their casings. These logos are typically composed of a combination of materials, such as a glass surface layer and a metal or stainless steel backing layer. By creating openings or reserving spaces in corresponding locations on the product casing, the logo components are embedded and then heat-pressed or bonded together, achieving both prominent brand identification and a high-quality visual and tactile experience.

[0003] However, in actual manufacturing processes, some trademark shapes (such as apple-shaped trademarks with leaves and fruit connecting edges) are prone to minor deformations, chipping, or edge defects during processing or hot pressing due to their relatively thin local geometry. This not only affects the surface flatness and appearance integrity of the trademark but may also lead to poor subsequent assembly or insufficient bonding strength. Furthermore, in traditional flat pressing or simple hot pressing processes, due to the differences in hardness, coefficient of thermal expansion, and other physical properties between the trademark sheet (usually glass or composite material) and the product's surface, a difference of approximately 0.04mm or even higher often appears at the junction of the trademark and the product casing after hot pressing. For consumer electronics products requiring A+ surface finish or high-end appearance quality, this difference is easily noticeable and fails to meet high standards such as precision appearance and consistent feel. Utility Model Content

[0004] In view of this, this application proposes a hot pressing device to solve at least one of the above problems.

[0005] A hot-pressing device is used to press a housing and an outer surface component together. The housing has a first opening and a second opening. The outer surface component includes a substrate layer and a main body and a secondary body disposed on the substrate layer. The main body is exposed through the first opening, and the secondary body is exposed through the second opening. The hot-pressing device includes a first hot-pressing assembly and a second hot-pressing assembly movable relative to the first hot-pressing assembly. The first hot-pressing assembly includes a first base and a first pressing portion protruding from the first base. The first pressing portion protrudes from the first base by a height H1. The first base is used to press and heat the substrate layer from one side, and the first pressing portion is used to press and heat the secondary body of the outer surface component from one side of the substrate layer. The second hot-pressing assembly includes a second base, a second pressing portion, and a third pressing portion. Both the second pressing portion and the third pressing portion protrude from the second base. The second pressing portion protrudes from the second base by a height H2, and the third pressing portion protrudes from the second base by a height H3. H1, H2, and H3 satisfy the following relationships: H2 > H3, and H1 = H2 - H3.

[0006] In some possible implementations, the first base extends outward to form a first support, the first support, the first base, and the first pressing portion form a first heating head, the first base being configured to conform to the substrate layer, and the first pressing portion being configured to conform to the substrate layer.

[0007] In some possible implementations, the second base extends outward to form a second support body. The second support body, the second base, the second pressing part, and the third pressing part together form a second heating head. The second pressing part is configured to conform to the shape of the main body, and the third pressing part is configured to conform to the shape of the secondary body. A plurality of first heating elements are embedded in the first heating head, and a plurality of second heating elements are embedded in the second heating head. The first heating elements are configured to heat the substrate layer, and the second heating elements are configured to heat the housing.

[0008] In some possible implementations, the first hot-pressing assembly further includes a first mounting plate, a plurality of equal-height columns, a first adapter plate, and a first heat insulation plate. The plurality of equal-height columns are spaced apart between the first adapter plate and the first mounting plate. The first heat insulation plate is disposed on the side of the first adapter plate opposite to the plurality of equal-height columns. The first base is connected to the side of the first heat insulation plate opposite to the first adapter plate.

[0009] In some possible implementations, the first hot-pressing assembly further includes a first limiting pressure head and an elastic element. The first limiting pressure head is disposed on the first heat insulation plate and has a first through hole. The first base is movably disposed on the first through hole, and the elastic element is connected between the first base and the first heat insulation plate.

[0010] In some possible implementations, the second hot-pressing assembly further includes a second limiting head, a second mounting plate, a second adapter plate, and a second heat insulation plate. The second heat insulation plate is disposed between the second mounting plate and the second adapter plate. The second limiting head is disposed on the second mounting plate and has a second through hole. The second base is disposed in the second through hole, and the second heat insulation plate is disposed between the second base and the second mounting plate.

[0011] In some possible implementations, the second hot-pressing assembly further includes a plurality of limiting members disposed on the second mounting plate and arranged around the second limiting head. Each limiting member includes a fixing block and a plurality of pulleys disposed on one side of the fixing block, and the plurality of pulleys are configured to abut against the housing.

[0012] In some possible implementations, the hot pressing device further includes a support, which includes a first substrate, a second substrate, and a plurality of support rods. The first substrate and the second substrate are disposed opposite to each other, and the plurality of support rods are disposed between the first substrate and the second substrate. The first hot pressing assembly is disposed on the side of the first substrate facing the second substrate, and the second hot pressing assembly is disposed on the side of the second substrate facing the first substrate.

[0013] In some possible implementations, the hot pressing device further includes a first movable component and a second movable component. The first movable component includes a first driving member and a movable plate. The movable plate is provided with a plurality of sliding holes, and the support rod is movably passed through the sliding holes. The first driving member is motive-connected to the movable plate. The second movable component includes a second driving member and a sliding kit. The sliding kit includes a guide rail and a slider. The slider is movably disposed on the guide rail. The second hot pressing component is disposed on the slider. The second driving member is motive-connected to the second adapter plate.

[0014] In some possible implementations, the hot pressing device further includes a dust removal assembly comprising a nozzle, a nozzle holder, and an air compressor. The nozzle is movably disposed at one end of the nozzle holder, the other end of the nozzle holder is disposed on the second substrate, the nozzle is configured to face the housing, and the air compressor is connected to the nozzle.

[0015] In this application, the main body and secondary body of the appearance component are pressurized differently. The second protrusion cooperates with the upper base to press against the main body, and the third protrusion cooperates with the first protrusion to press against the secondary body. The height difference between the second and third protrusions is equal to the height of the first protrusion. During the hot pressing process, the main body and secondary body can fit tightly against the shell according to their own characteristics under different pressures. Due to the differentiated pressure distribution, deformation of the appearance component caused by uneven pressure is effectively reduced. At the same time, this pressurization method can fully consider the differences in physical properties such as hardness and coefficient of thermal expansion between the appearance component and the shell, reduce the height difference between the appearance component and the shell, make the product appearance smoother and more consistent in feel, and meet the requirements of consumer electronics products for precision appearance and high-end quality. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the hot pressing device and housing provided in an embodiment of this application.

[0017] Figure 2 for Figure 1 The diagram shown is a schematic of the hot pressing device after the base and cover plate have been removed, before the housing and exterior parts are pressed together.

[0018] Figure 3 for Figure 1 The diagram shows the hot press device after the base and cover plate have been removed, and the housing and exterior parts have been pressed together.

[0019] Figure 4 This is a schematic diagram of a housing and exterior components provided in an embodiment of this application.

[0020] Figure 5 for Figure 4 The diagram shows the assembled bottom plate and exterior parts of the housing.

[0021] Figure 6 for Figure 4 The diagram shown is a schematic of the bottom plate and exterior parts of the housing before assembly.

[0022] Figure 7 for Figure 4 The diagram shows another angle of the base plate of the housing before assembly with the exterior components.

[0023] Figure 8 for Figure 5 The diagram shows a cross-sectional view of the base plate and exterior components of the housing along line AA.

[0024] Figure 9 for Figure 1 A schematic diagram of the first hot pressing component of the hot pressing device shown.

[0025] Figure 10 for Figure 9 The first hot-pressing assembly shown is a cross-sectional view along line BB.

[0026] Figure 11 for Figure 1 A schematic diagram of the second hot pressing assembly and the housing of the hot pressing device shown.

[0027] Figure 12 for Figure 1 A schematic diagram of the second hot pressing assembly of the hot pressing device shown.

[0028] Figure 13 for Figure 11 The second hot-pressing assembly and the housing are shown in a cross-sectional view along line CC.

[0029] Figure 14 for Figure 9 The first hot-pressing assembly shown is Figure 12 A partial cross-sectional view of the second hot-pressing assembly before pressing.

[0030] Figure 15 for Figure 9 The first hot-pressing assembly shown is Figure 12 The image shows a partial cross-sectional view of the second hot-pressing assembly after pressing.

[0031] Figure 16 This is a connection block diagram of the control unit of the hot pressing device provided in one embodiment of this application.

[0032] Explanation of main component symbols

[0033] Hot pressing device: 100; Outer parts: 200; Housing: 300; Substrate layer: 210; Outer pattern: 220; Adhesive: 230; Main body: 240; Sub-body: 250; Base plate: 310; Side plate: 320; Inner surface: 311; Outer surface: 312; Opening: 330; Stepped groove: 340; First opening: 331; Second opening: 332; First hot pressing assembly: 10; Second hot pressing assembly: 20 First base: 11; First pressing part: 12; Second base: 21; Second pressing part: 22; Third pressing part: 23; Glue overflow groove: 24; First support body: 13; First heating head: 14; First mounting plate: 16; Elevation column: 17; First adapter plate: 18; First heat insulation plate: 19; First limiting pressure head: 101; First through hole: 103; Elastic element: 102; Second limiting head: 201; Second through hole : 2011; Second mounting plate: 202; Second adapter plate: 203; Second heat insulation plate: 204; Limiting component: 206; Fixing block: 2061; Pulley: 2062; Bracket: 400; First base plate: 410; Second base plate: 420; Support rod: 430; First movable component: 500; First driving component: 501; Movable plate: 502; Sliding hole: 503; Second movable component: 600; Second driving component: 601; Sliding kit: 602; Guide rail: 602a; Slider: 602b; Dust removal component: 700; Nozzle: 701; Nozzle holder: 702; Air compressor: 703; Base: 800; Shell plate: 800; Control unit: 900; Pressure component: 901; First heating component: 15; Second heating component: 27; Second support body: 25; Second heating head: 26; First direction: X; Second direction: Y.

[0034] The following detailed description, in conjunction with the accompanying drawings, further illustrates the embodiments of this application. Detailed Implementation

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application pertain. The terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the embodiments of this application. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] It will be understood that when a layer is referred to as "on" another layer, it can be directly on that other layer or there may be an intermediate layer in between. Conversely, when a layer is referred to as "directly on" another layer, there is no intermediate layer. When a component is referred to as "attached to," "mounted to," "set on," or "connected to" another component, it can be directly on that other component or there may be an intervening component. The term "and / or" as used herein includes all and any combination of one or more of the associated listed items.

[0038] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] Embodiments of this application are described herein with reference to cross-sectional views, which are schematic diagrams of idealized embodiments (and intermediate configurations) of this application. Therefore, variations in the shapes illustrated due to manufacturing processes and / or tolerances are foreseeable. Consequently, embodiments of this application should not be construed as limited to the specific shapes of the areas illustrated herein, but should include, for example, deviations in shape due to manufacturing processes. The areas shown in the figures are merely illustrative, and their shapes are not intended to represent the actual shapes of the illustrated devices, nor are they intended to limit the scope of this application.

[0040] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] Please see Figures 1-3 One embodiment of this application provides a hot pressing device 100 for heating and pressing an outer part 200 and a housing 300, so that the outer part 200 and the housing 300 are joined together.

[0042] Please see Figure 4 , Figure 5 as well as Figure 6 The exterior component 200 is pre-attached to the housing 300, with a portion of the exterior component 200 exposed within the housing 300. Specifically, the exterior component 200 has a generally layered structure, including a substrate layer 210 and an exterior pattern 220 disposed on the substrate layer 210. See also... Figure 7The thickness direction of the appearance component 200 is defined as the first direction X. Along the first direction X, the projection of the appearance pattern 220 is located within the substrate layer 210, and a gap is provided between the outline of the appearance pattern 220 and the outline of the substrate layer 210, that is, the edge portion of the substrate layer 210 is not covered by the appearance pattern 220, and adhesive 230 is provided on one side of this portion of the substrate layer 210. The appearance component 200 includes a main body 240 and a secondary body 250, for example, the fruit portion (main body 240) and the leaf portion (secondary body 250) of an apple-shaped appearance component.

[0043] Please see Figure 4 , Figure 5 , Figure 6 as well as Figure 8 The housing 300 is generally box-shaped, including a base plate 310 and multiple side plates 320. The side plates 320 surround the periphery of the base plate 310 to form a receiving space. The base plate 310 includes an inner surface 311 and an outer surface 312 opposite to the inner surface 311. The base plate 310 is provided with an opening 330 and a stepped groove 340 communicating with the opening 330. The stepped groove 340 surrounds the outer periphery of the opening 330. The opening 330 penetrates the inner surface 311 and the outer surface 312, and the inner surface 311 is recessed to form the stepped groove 340. The shape of the appearance pattern 220 is roughly matched with that of the opening 330, and the appearance pattern 220 is exposed in the opening 330. The opening 330 includes a first opening 331 and a second opening 332. The main body 240 is exposed in the first opening 331, and the secondary body 250 is exposed in the second opening 332. The edge portion of the substrate layer 210 is located in the stepped groove 340, and the adhesive 230 is connected to the bottom of the stepped groove and the substrate layer 210 to achieve a firm connection.

[0044] Please see Figure 2 as well as Figure 3 In this embodiment, the hot pressing device 100 includes a first hot pressing assembly 10 and a second hot pressing assembly 20. The first hot pressing assembly 10 can move relative to the second hot pressing assembly 20 along a second direction Y to cooperate in heating and pressurizing the outer part 200 and the housing 300.

[0045] Please see Figure 9 The first hot-pressing assembly 10 includes a first base 11 and a first pressing portion 12 protruding from the first base 11. Along the second direction Y, the first pressing portion 12 protrudes from the first base 11 by a height H1. The first base 11 is used to press against the heated substrate layer 210 from one side, and the first pressing portion 12 is used to press against the secondary body 250 of the heating appearance component 200 from one side of the substrate layer 210. Specifically, the first pressing portion 12 protrudes from the first base 11 by a height of 0.02 mm.

[0046] Please see Figure 12The second hot-pressing assembly 20 includes a second base 21, a second pressing part 22, and a third pressing part 23. Both the second pressing part 22 and the third pressing part 23 protrude from the second base 21. Along the second direction Y, the height by which the second pressing part 22 protrudes from the second base 21 is H2, and the height by which the third pressing part 23 protrudes from the second base 21 is H3. H1, H2, and H3 satisfy the following conditions: H2 > H3, H1 = H2 - H3. Specifically, the height by which the second pressing part 22 protrudes from the second base 21 is 0.06 mm, and the height by which the third pressing part 23 protrudes from the second base 21 is 0.04 mm.

[0047] Along the second direction Y, the second base 21 is correspondingly disposed to the first base 11. The second base 21 is used to press against the bottom plate 310 and the external part 200 exposed in the opening. The second pressing part 22 is used to press against the main body 240 exposed in the first opening 331, and the third pressing part 23 is used to press against the secondary body 250 exposed in the second opening 332.

[0048] Please see Figure 2 , Figure 3 , Figure 14 as well as Figure 15 During operation, the shell 300 with the pre-bonded exterior component 200 is placed in the designated position of the hot pressing device 100. The hot pressing device 100 is activated, and the first hot pressing assembly 10 and the second hot pressing assembly 20 move synchronously in opposite directions. The first base 11 first presses against the substrate 210, heating and curing the adhesive 230 to provide a stable foundation; simultaneously, the first pressing part 12 acts on the secondary body 250 for localized heating and pressing. The second base 21 of the second hot pressing assembly 20 synchronously presses against the base plate 310, the second pressing part 22 applies pressure to the main body 240, and the third pressing part 23 applies pressure to the secondary body 250, achieving a precise bond between the exterior component 200 and the shell 300, ensuring a smooth and flat appearance.

[0049] In this application, by applying differentiated pressure to the main body 240 and secondary body 250 of the appearance component 200, the second pressing part 22 cooperates with the second base 21 to press against the main body 240, and the third pressing part 23 cooperates with the first pressing part 12 to press against the secondary body 250. The height difference between the second pressing part 22 and the third pressing part 23 is equal to the height of the first pressing part 12. During the hot pressing process, the main body 240 and the secondary body 250 can fit tightly against the shell 300 according to their own characteristics under different pressures. Due to the differentiated pressure distribution, the deformation of the appearance component 200 caused by uneven pressure is effectively reduced. At the same time, this pressing method can fully consider the differences in physical properties such as hardness and coefficient of thermal expansion between the appearance component 200 and the shell 300, reduce the height difference between the appearance component 200 and the shell 300, make the product appearance smoother and more consistent in feel, meet the requirements of consumer electronics products for precision appearance and high-end quality, and significantly enhance the product's market competitiveness.

[0050] Please see Figure 9 In this embodiment, the first hot-pressing assembly 10 includes a first base 11 extending outward to form a first support 13. The first support 13, the first base 11, and the first pressing part 12 are a stepped, integrally formed structure, forming a first heating head 14. Viewed along the second direction Y, the first base 11 is similar in shape to the substrate layer 210, and the first pressing part 12 is similar in shape to the secondary body 250 of the outer appearance part 200. This ensures that when the first base 11 presses against the substrate layer 210, and when the first pressing part 12 presses against the secondary body 250, the substrate layer 210 and the secondary body 250 are subjected to uniform force, reducing damage to the substrate layer 210 and the secondary body 250 caused by local pressure concentration.

[0051] Please see Figure 12 The second pressing part 22 and the third pressing part 23 are stepped, integrally molded structures. Viewed along the second direction Y, the second pressing part 22 is similar in shape to the main body 240 of the outer appearance part 200, and the third pressing part 23 is similar in shape to the secondary body 250 of the outer appearance part 200. An overflow groove 24 is provided between the second base 21 and the second pressing part 22, and between the second base 21 and the third pressing part 23. During hot pressing, excess adhesive 230 flows into the overflow groove 24, effectively preventing overflow from contaminating the product's appearance and ensuring the product's cleanliness and aesthetics. The second base 21 extends outward to form a second support body 25. The second support body 25 and the second base 21 are stepped, integrally molded structures. The second base 21, the second support body 25, the second pressing part 22, and the third pressing part 23 together form the second heating head 26.

[0052] Please see Figure 10 and Figure 13 In this embodiment, a plurality of first heating elements 15 are embedded in the first support 13, and a second heating element 27 is embedded in the second support 25. Both the first heating element 15 and the second heating element 27 are resistance heating elements. The first heating element 15 is used to uniformly heat the substrate layer 210 of the outer part 200 during hot pressing, thereby enhancing the bonding strength between the substrate layer 210 and the bottom of the stepped groove. The second heating element 27 is used to heat the bottom plate 310 and surrounding area of ​​the shell 300, so that the shell 300 material generates a certain thermal expansion effect during hot pressing, which matches the degree of thermal expansion of the outer part 200, thereby effectively reducing the step difference generated at the joint due to the difference in the coefficients of thermal expansion of the two.

[0053] Please see Figure 9 and Figure 10In this embodiment, the first hot-pressing assembly 10 further includes a first mounting plate 16, a plurality of leveling columns 17, a first adapter plate 18, and a first heat insulation plate 19. The plurality of leveling columns 17 are spaced apart between the first adapter plate 18 and the first mounting plate 16. The first heat insulation plate 19 is disposed on the side of the first adapter plate 18 opposite to the leveling columns 17. The first heating head 14 is connected to the side of the first heat insulation plate 19 opposite to the first adapter plate 18.

[0054] In this embodiment, the first hot-pressing assembly 10 further includes a first limiting pressure head 101 and an elastic element 102. The first limiting pressure head 101 is disposed on the first heat insulation plate 19 and has a first through hole 103. The first base 11 is movably disposed in the first through hole 103, thereby limiting the movement of the first heating head 14 along the second direction Y. The elastic element 102 connects the first heating head 14 and the first heat insulation plate 19 to achieve an elastic connection between the first heating head 14 and the first heat insulation plate 19. The elastic element is a spring. The elastic element can play a buffering role. When the first heating head 14 is pressed down, the spring is compressed, reducing the impact force caused by the instantaneous excessive pressure on the outer part 200.

[0055] Please see Figure 11 , Figure 12 as well as Figure 13 In this embodiment, the second hot-pressing assembly 20 further includes a second limiting head 201, a second mounting plate 202, a second adapter plate 203, and a second heat insulation plate 204. The second heat insulation plate 204 is disposed between the second mounting plate 202 and the second adapter plate 203. The second limiting head 201 is disposed on the second mounting plate 202. The second limiting head 201 is provided with a second through hole 2011, and the second base 21 is disposed in the second through hole 2011. The second heat insulation plate 204 is disposed between the second base 21 and the second mounting plate 202.

[0056] Please see Figure 12 In this embodiment, the second hot-pressing assembly 20 further includes a plurality of limiting members 206. The limiting members 206 are disposed on the second mounting plate 202 and surround the second limiting head 201. The limiting members 206 are used to limit the position of the housing 300. Specifically, each limiting member 206 includes a fixing block 2061 and a plurality of pulleys 2062 disposed on one side of the fixing block 2061. The pulleys 2062 are used to abut against the side plate 320 of the housing 300, thereby defining the position of the housing 300.

[0057] Please see Figure 2 and Figure 3In this embodiment, the hot pressing device 100 further includes a support 400. The support 400 includes a first substrate 410, a second substrate 420, and a plurality of support rods 430. The first substrate 410 and the second substrate 420 are disposed at a distance from each other. The plurality of support rods 430 are spaced apart between the first substrate 410 and the second substrate 420. A first hot pressing assembly 10 is disposed on the side of the first substrate 410 facing the second substrate 420. That is, the side of the first adapter plate 18 away from the leveling post 17 is connected to the side of the first substrate 410 facing the second substrate 420. A second hot pressing assembly 20 is disposed on the side of the second substrate 420 facing the first substrate 410. That is, the side of the second adapter plate 203 away from the second mounting plate 202 is disposed on the side of the second substrate 420 facing the first substrate 410.

[0058] In this embodiment, the hot pressing device 100 further includes a first movable component 500 and a second movable component 600. The first movable component 500 includes a first driving member 501 and a movable plate 502. The movable plate 502 has a plurality of sliding holes 503 through it, and the support rod 430 passes through the sliding holes 503. The first driving member 501 is connected to the movable plate 502 through a transmission rod to drive the movable plate 502 to move up and down relative to the support rod 430, thereby driving the first hot pressing component 10 to reciprocate along the first direction X. The second movable component 600 includes a second driving member 601 and a sliding kit 602. The sliding kit 602 includes a guide rail 602a and a slider 602b. The slider 602b is movably disposed on the guide rail 602a, and the second hot pressing component 20 is disposed on the slider 602b. The second driving member 601 is drively connected to the second adapter plate 203 of the second hot pressing component 20. Both the second driving member 601 and the guide rail 602a are disposed on the second base plate 420. The guide rail 602a extends along a first direction X perpendicular to the first direction. The first driving component 501 is a motor, and the second driving component 601 is a cylinder. Thus, the motor and cylinder work together to precisely control the movement of the first and second hot-pressing components 20. The motor causes the first hot-pressing component 10 to reciprocate smoothly, while the cylinder drives the second hot-pressing component 20 to move flexibly, adapting to complex hot-pressing requirements.

[0059] In this embodiment, the hot pressing device 100 further includes a dust removal assembly 700, which includes a nozzle 701, a nozzle holder 702, and an air compressor (not shown). The nozzle 701 is movably disposed at one end of the nozzle holder 702. The other end of the nozzle holder 702 is disposed on the second substrate 420. The nozzle 701 is positioned towards the housing 300. The air compressor is connected to the nozzle 701 and blows away impurities on the surface of the housing 300 before hot pressing to avoid affecting adhesion. During hot pressing, it also assists in cooling, controls the temperature, and improves product accuracy and yield.

[0060] Please see Figure 1In this embodiment, the hot pressing device 100 further includes a base 800 and a shell plate 801. The base 800 is disposed on the side of the second substrate 420 away from the first substrate 410. The shell plate 801 surrounds the outside of the support 400. In this way, stable support and auxiliary fixation of the overall structure can be achieved, ensuring the positioning and protection of the product during the hot pressing process.

[0061] Please see Figure 16 In this embodiment, the hot pressing device 100 further includes a control unit 900 and a pressure component 901. The control unit 900 is electrically connected to each driving component (e.g., the first driving component 501 or the second driving component 601), the first heating component 15, the second heating component 27, and the pressure component 901. The control unit 900 is used to monitor and adjust parameters such as temperature, pressure, and displacement during the hot pressing process in real time, and to achieve linkage control with each actuator, heating element, and sensor to ensure a stable and efficient hot pressing process.

[0062] An embodiment of this application also provides a method of using a hot pressing device 100, including the following steps:

[0063] S1: Pre-treatment and positioning. Place the pre-bonded exterior parts 200 and housing 300 at the designated positions on the hot press device 100, ensuring that the positions of each component are accurately aligned.

[0064] S2: Start the hot pressing process. Start the control unit 900 so that the first hot pressing component 10 first heats the substrate 210 evenly and presses the cured adhesive 230, while simultaneously heating the secondary body 250 locally.

[0065] S3: Differentiated pressurization. After the first hot press assembly 10 is working, the second hot press assembly 20 is started, using the second pressing part 22 and the third pressing part 23 to precisely pressurize and heat the main body 240 and the secondary body 250 respectively, so as to achieve a firm bond between the outer part 200 and the shell 300.

[0066] S4: Monitoring, Resetting, and Removing Finished Products. Throughout the hot pressing process, the control unit 900 monitors various process parameters in real time. After hot pressing is completed, each component automatically or under control resets, and the operator removes the finished product for subsequent testing.

[0067] The above description describes some specific embodiments of this application, but in actual applications, the application should not be limited to these embodiments. For those skilled in the art, other modifications and alterations made based on the technical concept of this application should fall within the protection scope of this application.

Claims

1. A hot press apparatus for pressing a case and an appearance member, the case being provided with a first opening and a second opening, the appearance member including a substrate layer and a main body and a sub-body provided to the substrate layer, the main body being exposed to the first opening, the sub-body being exposed to the second opening, characterized in that, The hot pressing device comprises a first hot pressing assembly and a second hot pressing assembly moving relative to the first hot pressing assembly; The first hot pressing assembly comprises a first base and a first pressing part protruding from the first base, the height of the first pressing part protruding from the first base is H1, the first base is used for pressing and heating the substrate layer from one side, and the first pressing part is used for pressing and heating the secondary body of the appearance part from one side of the substrate layer; The second hot pressing assembly comprises a second base, a second pressing part and a third pressing part, the second pressing part and the third pressing part are both arranged to protrude from the second base, the height of the second pressing part protruding from the second base is H2, and the height of the third pressing part protruding from the second base is H3, wherein H1, H2 and H3 satisfy the relationship: H2>H3, and H1=H2-H3.

2. The hot press apparatus of claim 1, wherein The first base extends outward to form a first support body, the first support body, the first base and the first pressing part form a first heating head, the first base is configured to be profiled with the substrate layer, and the first pressing part is configured to be profiled with the secondary body.

3. The hot press apparatus of claim 2, wherein The second base extends outward to form a second support body, the second support body, the second base, the second pressing part and the third pressing part jointly form a second heating head, the second pressing part is configured to be profiled with the main body, the third pressing part is configured to be profiled with the secondary body, a plurality of first heating elements are embedded in the first heating head, and a plurality of second heating elements are embedded in the second heating head, the first heating elements are configured to heat the substrate layer, and the second heating elements are configured to heat the shell.

4. The hot press apparatus of claim 1, wherein The first hot pressing assembly further comprises a first mounting plate, a plurality of equal-height columns, a first adapter plate and a first heat insulation plate, the plurality of equal-height columns are arranged between the first adapter plate and the first mounting plate, the first heat insulation plate is arranged on the side of the first adapter plate away from the plurality of equal-height columns, and the first base is connected to the side of the first heat insulation plate away from the first adapter plate.

5. The hot press apparatus of claim 4, wherein The first hot pressing assembly further comprises a first limiting pressure head and an elastic element, the first limiting pressure head is arranged on the first heat insulation plate, the first limiting pressure head is provided with a first through hole, the first base is movably arranged in the first through hole, and the elastic element is connected between the first base and the first heat insulation plate.

6. The hot press apparatus of claim 1, wherein The second hot pressing assembly further comprises a second limiting head, a second mounting plate, a second adapter plate and a second heat insulation plate, the second heat insulation plate is arranged between the second mounting plate and the second adapter plate, the second limiting head is arranged on the second mounting plate, the second limiting head is provided with a second through hole, the second base is arranged in the second through hole, and the second heat insulation plate is arranged between the second base and the second mounting plate.

7. The hot press apparatus of claim 6, wherein The second hot pressing assembly further comprises a plurality of limiting elements, the plurality of limiting elements are arranged on the second mounting plate, the plurality of limiting elements are arranged around the second limiting head, each limiting element comprises a fixed block and a plurality of pulleys arranged on one side of the fixed block, and the plurality of pulleys are configured to abut against the shell.

8. The hot press apparatus of claim 7, wherein, The hot-pressing device further comprises a support, the support comprising a first base plate, a second base plate and a plurality of support rods, the first base plate and the second base plate being oppositely spaced, and the plurality of support rods being spaced between the first base plate and the second base plate, the first hot-pressing assembly being arranged on a side of the first base plate facing the second base plate, and the second hot-pressing assembly being arranged on a side of the second base plate facing the first base plate.

9. The hot press apparatus of claim 8, wherein, The hot-pressing device further comprises a first movable assembly and a second movable assembly, the first movable assembly comprising a first driving member and a movable plate, the movable plate being provided with a plurality of sliding holes, the support rods being movably arranged in the sliding holes, and the first driving member being drivingly connected to the movable plate, the second movable assembly comprising a second driving member and a sliding sleeve assembly, the sliding sleeve assembly comprising a guide rail and a sliding block, the sliding block being movably arranged on the guide rail, the second hot-pressing assembly being arranged on the sliding block, and the second driving member being drivingly connected to the second adapter plate.

10. The hot press apparatus of claim 8, wherein The hot-pressing device further comprises a dust removal assembly, the dust removal assembly comprising a nozzle, a nozzle frame and an air compressor, the nozzle being movably arranged on one end of the nozzle frame, the other end of the nozzle frame being arranged on the second base plate, the nozzle being configured to be arranged towards the shell, and the air compressor being connected to the nozzle.

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